1842wornumfig4
Autor/Urheber:
Robert Wornum
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Größe:
531 x 156 Pixel (73345 Bytes)
Beschreibung:
Diagrams of the second and first improvements from the specification of the English patent granted to Robert Wornum, dated February 15, 1842; traced and colorized by User:Mireut
Lizenz:
Public domain
Credit:
Fig. 4, sheet 3, from Robert Wornum "Improvements in the action of pianofortes" English patent no. 9,262 February 15, 1842
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Robert WornumRobert Wornum war ein Klavierbauer, der in London während der ersten Hälfte des 19. Jahrhunderts arbeitete. .. weiterlesen